# Identity resolution for small business buyers: what AI models recommend, November 2026

Gane Index, November 2026 Edition. Asked as "identity resolution platform" and as "customer identity matching service", six framings each, to fourteen models with search on, on behalf of a small B2B company. Page: https://www.gane.ai/index/gtm/gtm-data/identity-resolution/smb

**Standing:** FullContact leads with 30% of first choices; verdict contested. 54 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [FullContact](https://www.gane.ai/index/gtm/vendors/fullcontact/index.md) | 30% | 2% | 42 |
| 2 | [HubSpot Breeze Intelligence](https://www.gane.ai/index/gtm/vendors/hubspot-breeze-intelligence/index.md) | 13% | 6% | 33 |
| 3 | [Hightouch Adaptive Identity Resolution](https://www.gane.ai/index/gtm/vendors/hightouch-adaptive-identity-resolution/index.md) | 9% | 5% | 41 |
| 5 | [Apollo.io](https://www.gane.ai/index/gtm/vendors/apollo-io/index.md) | 6% | 0% | 12 |
| 6 | [Prospeo](https://www.gane.ai/index/gtm/vendors/prospeo/index.md) | 4% | 0% | 14 |
| 7 | [Twilio Segment Unify](https://www.gane.ai/index/gtm/vendors/twilio-segment-unify/index.md) | 4% | 31% | 32 |
| 21 | [Amperity](https://www.gane.ai/index/gtm/vendors/amperity/index.md) | 2% | 76% | 17 |
| 22 | [Senzing](https://www.gane.ai/index/gtm/vendors/senzing/index.md) | 0% | 0% | 14 |
| 24 | [Retention.com](https://www.gane.ai/index/gtm/vendors/retention-com/index.md) | 0% | 25% | 12 |
| 101 | [Informatica MDM](https://www.gane.ai/index/gtm/vendors/informatica-mdm/index.md) | 0% | 67% | 15 |
| 102 | [Salesforce Data Cloud](https://www.gane.ai/index/gtm/vendors/salesforce-data-cloud/index.md) | 0% | 77% | 22 |
| 103 | [LiveRamp Identity Resolution](https://www.gane.ai/index/gtm/vendors/liveramp-identity-resolution/index.md) | 0% | 87% | 38 |

Rank is by share of first choices among all 103 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: RB2B, Warmly; alternatives CustomerLabs 1PD Ops, FullContact
- GPT-5.4 mini: Hightouch Adaptive Identity Resolution; alternatives Twilio Segment Unify
- Gemini 3.5 Flash: RB2B; alternatives Apollo.io, Dealfront, Factors.ai, HubSpot Breeze Intelligence
- Perplexity Sonar: FullContact; alternatives Hightouch Adaptive Identity Resolution, RB2B
- Grok 4.20: Hightouch Adaptive Identity Resolution; alternatives Apollo.io, FullContact, HubSpot Breeze Intelligence
- Mistral Small: FullContact, Prospeo; alternatives D&B Connect, Retention.com, Trust Swiftly
- DeepSeek V4 Flash: Hightouch Adaptive Identity Resolution; alternatives Customers.ai, FullContact, Prospeo, RB2B
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: Dealfront; alternatives Apollo.io, HubSpot Breeze Intelligence, Lusha
- Kimi K2: Hightouch Adaptive Identity Resolution, HubSpot Breeze Intelligence; alternatives FullContact, Oppora
- GLM 4.7 FlashX: HubSpot Breeze Intelligence; alternatives FullContact, Hightouch Adaptive Identity Resolution
- MiniMax M2.5: no first choice
- GPT-6 Luna: RB2B; alternatives Apollo.io, HubSpot Breeze Intelligence
- Muse Glimmer 30B: Hightouch Adaptive Identity Resolution; alternatives FullContact, HubSpot Breeze Intelligence, Prospeo

## Sources the answers cite

73 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- g2.com: 52 answers, 95 citations
- gane.ai/index: 37 answers, 37 citations
- prospeo.io: 28 answers, 30 citations
- sourceforge.net: 27 answers, 51 citations
- acxiom.com: 23 answers, 23 citations
- topbusinesssoftware.com: 22 answers, 28 citations
- usermaven.com: 20 answers, 20 citations
- trustradius.com: 19 answers, 21 citations

Pages named in the most answers:

- https://g2.com/categories/identity-resolution/small-business (40 answers)
- https://gane.ai/index/gtm/gtm-data/identity-resolution/smb (36 answers)
- https://prospeo.io/s/identity-resolution-software (27 answers)
- https://acxiom.com/wp-content/uploads/2025/08/martech-intelligence-report-identity-resolution-platforms.pdf (23 answers)
- https://usermaven.com/blog/identity-resolution-software (19 answers)
- https://softwaresuggest.com/identity-resolution-software (18 answers)
- https://topbusinesssoftware.com/categories/identity-resolution (16 answers)
- https://oppora.ai/blog/identity-resolution-software (15 answers)
- https://trustradius.com/identity-resolution?company-size=small-business (15 answers)
- https://sourceforge.net/software/identity-resolution (13 answers)

## Warned against

- LiveRamp Identity Resolution: 33 of 38 labels negative. "LiveRamp is typically inaccessible for small businesses. It requires long-term contracts, heavy professional services implementation, and carries a massive premium cost." (Muse Glimmer 30B, negative prompt)
- Salesforce Data Cloud: 17 of 22 labels negative. "Avoid or strongly reconsider enterprise‑heavy, complex platforms like Salesforce Data 360 unless you have the budget, technical resources" (GLM 4.7 FlashX, negative prompt)
- Amperity: 13 of 17 labels negative. "Enterprise CDP platforms (Amperity, Reltio, Informatica) — built for companies with millions of records and large data teams" (DeepSeek V4 Flash, scale prompt)
- Twilio Segment Unify: 10 of 32 labels negative. "High cost, requires technical expertise to operate effectively" (Kimi K2, negative prompt)

## Movement since October 2026

Floor: 11 points of share, measured on the calibration repeat.
Same leader: FullContact at 30%.

- FullContact: 10% to 30%, +20. Cleared the floor by 9 points · rank 1 of 103, unchanged.
- CustomerLabs 1PD Ops: 8% to 0%, −8. Inside the floor by 3 points · rank 5 → 23 of 103.
- Prospeo: 8% to 4%, −4. Inside the floor by 7 points · rank 4 → 6 of 103.
- HubSpot Breeze Intelligence: 10% to 13%, +3. Inside the floor by 8 points · rank 2 of 103, unchanged.
- Apollo.io: 8% to 6%, −2. Inside the floor by 9 points · rank 6 → 5 of 103.
- Tealium: 0% to 2%, +2. Inside the floor by 9 points · rank 126 → 18 of 103.
- Amperity: 0% to 2%, +2. Inside the floor by 9 points · rank 128 → 21 of 103.
- Retention.com: 2% to 0%, −2. Inside the floor by 9 points · rank 25 → 24 of 103.
- Hightouch Adaptive Identity Resolution: 8% to 9%, +1. Inside the floor by 10 points · rank 3 of 103, unchanged.
- Twilio Segment Unify: 5% to 4%, −1. Inside the floor by 10 points · rank 8 → 7 of 103.
- Senzing: 0% to 0%, ±0. Inside the floor by 11 points · rank 26 → 22 of 103.
- Experian Identity Resolution: 0% to 0%, ±0. Inside the floor by 11 points · rank 123 → 80 of 103.

## Record

- Method: https://www.gane.ai/index/gtm/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/gtm.